| Also on a hillside to the north is a contact metamorphosed bed rich in small, dark blue, platy corundum crystals. |
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| I have always regarded specular hematite as a micaceous or platy form that would be very difficult to fashion into beads. |
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| He's lived happily for the past four months with a platy and two neon tetras in a five gallon aquarium. |
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| This is the white scale or platy stuff that you may see on the inside of the dishwasher or coffee pots or other hot water contact areas. |
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| Kaolin: also known as china clay, kaolin is a natural white platy mineral derived from the geological alteration of granite or similar rock. |
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| Coexistence of the two types of sex-determining mechanisms in the same species is unusual and has been reported only in the platy fish, housefly, and midge. |
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| During the April 1997 field trip to Mont Saint-Hilaire, I picked up some small samples because they contained a yellow platy material. |
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| Mica: an aluminum and potassium silicate, this natural mineral has a platy, non-plastic structure. |
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| Visual identification is sometimes difficult with catapleiite and an unusual platy habit of rhodochrosite. |
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| Usually the color of a duric horizon differs little from that of the parent material, and the structure is usually massive or very coarse platy. |
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| I had a mixed community aquarium with several tetras, two mollies, some corydoras catfish, and a platy from a previous tank. |
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| Exotic fish species such as guppy, platy, gourami and sucker catfish are increasingly being used as aquarium pets. |
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| This has included the use of kaolin with naturally platy particle shape to improve the ability of coatings to cover imperfections in paper and give better printing appearance. |
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| A pearlescent pigment comprising a ferrite-coated iron oxide-coated platy pigment in which the ferrite coating is substantially free of needle-shaped crystallites. |
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| These ultrafine talcs, obtained using proprietary grinding techniques, have a platy structure that provides a higher surface area. |
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| Premium grades of highly pure, low-iron, platy talcs, high-purity calcium carbonates, phlogopite micas, and ground white barium sulfate for high-density compounds. |
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| The main mineral component of the raw material is platy kaolinite and there are also small amounts of impurities, such as Fe, Ti and C, associated with the kaolinite. |
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